#字典的基本使用案例
dict_tel = {'jack' : 4098 , 'tom' : 4139}
#dict_tel : {'jack': 4098, 'tom': 4139} , 类型:<class 'dict'>
print(f"dict_tel : {dict_tel} , 类型:{type(dict_tel)}")
#查询jack的tel
print("jack的tel" , dict_tel['jack'])